<!DOCTYPE html>
<html lang="Zh-CN">
<head>
  <meta charset="utf-8">
  <title>20-Loading</title>
  <!-- Link CSS -->
  <link rel="stylesheet" href="css/style.css">
</head>
<body>
	<div class="loader">
		<div class="domino">
			<div></div>
			<div></div>
			<div></div>
			<div></div>
		</div>
	</div>
</body>
</html>